毕业设计说明书中文摘要近年来，经济发展与生态环境的和谐问题日渐严重，可持续发展日益受到世界各国的极大的重视。风能作为一种清洁的、可持续再生的新型能源，成为替代能源的首选。经过前人的研究，风力发电技术已逐渐走向成熟，具有广阔的开发应用前景。84285

本文以直驱式永磁风力发电机组（D-PMSG）为研究对象，主要完成了以下工作：

（1）综述了目前风电技术的发展现状，讨论了D-PMSG的技术特点和优势。

（2）阐述了永磁同步发电机的运行原理，分析了D-PMSG的结构和工作原理，建立了风速、风力机、永磁同步发电机、机侧整流器、Boost升压斩波电路、网侧逆变器模型，在此基础上建立了D-PMSG并网电力系统的数学模型。

（3）建立了D-PMSG并网系统仿真模型，实现了风电机组的并网运行，分别完成了风速不变和变化时风电系统的动态仿真，结果验证了该模型正确性和合理性。

关键词  直驱式风电机组  永磁同步发电机  建模  仿真

毕业设计说明书外文摘要

Title    Modelling and Simulation of the D-PMSG Wind-power Generator 

Abstract

In recent years, with the increasing worry about the harmony between economic development and ecological environment, sustainable development has gained more concern by the countries all over the world。 The sustainable and renewable energy is proved to be the first choice of the alternative energy sources。 With previous persistent research, the wind power generation technology is gradually maturing and has broad prospects of development and application。

This dissertation investigates the Directly Permanent Magnetic Synchronous Machine (D-PMSG)。 The main work is the following：

(1) The current situation of the wind power generation technology is summarized and the technical features and advantages of the D-PMSG are discussed。

(2) The principle of the permanent magnet synchronous generator is expatiated。 The structure and operating mechanism of the D-PMSG are analyzed。 A mathematical model of power system integrated with wind generator is built up, including the models of wind speed, wind turbine, permanent magnet synchronous generator, rectifier and inverter, etc。

(3) The simulation model of wind generator integrated power system is established。 Simulations are performed which realize the operation of the DPMSG after its integration to power grid。 The results by the dynamic simulation of wind generating system with constant and variable wind speed verify the correctness and rationality of the model。

Keywords  D-PMSG  Permanent magnetic synchronous machine  Modelling  Simulation

目   次

1 绪论…………………………………………………………………………………………… 1

1。1  选题意义及背景 ……………………………………………………………………… 1

1。1。1  风能利用历史 ………………………………………………………………………… 1

1。1。2  国内外风电发展现状 ………………………………………………………………… 1